KR20170140474A - Access Floor production method of eco-friendly materials - Google Patents

Abstract

The present invention relates to the development of an eco-friendly building material which reduces waste by recycling hygienic products discarded after use and defective products generated during a manufacturing process among hygienic products such as diapers or wet-strength paper tissues of a pulp material including plastic and super-absorbent polymer (SAP), economically reduces manufacturing costs, and has no difference in quality from those used in the past. A method for manufacturing a prefabricated double floor panel of an eco-friendly material has been developed by using the waste hygienic products, and the double floor panel as described above is made of a polypropylene-based resin and a polyethylene-based resin, and a synthetic resin containing pulps included in waste diapers is added to waste raw materials and is stirred and mixed with an additive and a thermoplastic resin to be compressed and molded, such that the building material has excellent sound absorption, insulation, water resistance, flame retardancy, and printing resistance, and is hardly discolored. The present invention relates to a technology field for manufacturing and usefully applying a double floor panel capable of safely installing electric wires and electrical wirings under a floor material in a computer room, an office, a broadcasting station, a research room, and the like.

Description

{Access floor production method of eco-friendly materials}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sanitary article such as a wet tissue paper or a diaper which is made of a pulp material including a plastic and a super absorbent polymer (SAP) The present invention relates to the development of eco-friendly building materials that are economically less costly and have no difference in quality from those used in the past.

The above double bottom panel is made of a polypropylene-based resin and a polyethylene-based resin. The synthetic resin containing pulp contained in a waste diaper is used as a waste raw material It is a technical field to apply the additives and the thermoplastic resin to the double bottom plate by mixing and compressing and forming the double bottom plate.

There are many pulp papers that people use in their daily lives. As a main raw material of such natural pulp paper, wood and other resources are used, which causes destruction of natural environment and waste of resources. However, in modern society, the use of pulp paper is increasing. For example, the sales volume of disposable diapers in Korea is about 2 billion units per year in 2010, which is about twice the amount of disposable diapers sold in 1995 compared to 1 billion units in 1995. This increase in consumption leads to the consumption of a large amount of raw materials, which means an increase in the amount of waste, and these wastes are costly again for disposal, and do not burden the environment pollution. Therefore, the utilization of waste has become important and it is an important task of modern society that endlessly research and development for more effective use.

Paper products such as diapers and paper towels that are produced during the production process in the factory are usually mixed with polyolefin-based polymer fibers and wood pulp or constitute separate layers. In particular, a resin for enhancing wet strength is added, It is not easy to dispose of these wastes.

In the present invention, in order to recycle the waste pulp paper to be discarded as described above, a variety of products are under development, and one of them is to develop a building material, and it is possible to process the product by the reproduction to prevent degradation of the existing product quality and characteristics We developed a double floor panel as an article.

The assembled double floor panel is installed in order to neatly guide the office environment through the systemization of the wiring and to facilitate the safety and partial repair of the wiring. The double flooring is divided into the access floor (OVER FLOOR) and the office floor (OA FLOOR) . These double floor panels are installed only in the limited area of the computer room at first. It is now known as a flooring material preferred for use in various offices such as general offices, disaster prevention centers, broadcasting stations, laboratories, substations, banks, schools, and office buildings.

The double bottom panel has air conditioning and drainage facilities in the electric wires and wiring bottoms, and it has soundproofing and anti-vibration effects. After the flooring is installed, it is finished with antistatic tile, conductive tile and carpet.

By using the above-mentioned flooring material, it is necessary to select a material so that the construction method is quick, the dust and noise are small, the walking feeling is good, the maintenance is easy, and the nonflammable material is used.

For such a reason, the double bottom panel tends to have a higher unit price by using a material having a high strength function such as an iron plate or steel. If the unit price is increased as described above, the use of the dual floor panel, which is an advantage of the quick installation and the partial repair and installation, is inexpensive to use inexpensive remodeling.

Korea registered patent [10-0591140] Korea registered patent [10-0550155]

The present invention is to provide a method of manufacturing a composite double bottom member by recycling a waste diaper, a paper towel for a washing cloth, and a waste sanitary article, which is one of the most discarded waste paper.

Another object of the present invention to solve the above problems is to provide a double bottom panel using a waste material, which can reduce waste of resources and provide a metal duplexer which is cheaper than conventional products, And to develop and provide a manufacturing method of an eco-friendly product having the same or higher performance as the bottom panel.

The present invention is a floor panel installed on a concrete floor in a building, and can be installed at a low cost in a business site where offices and interiors are frequently changed. By installing cable lines of a computer and various equipment inside the floor, a better interior effect can be obtained. So that it is possible to provide an effect of relieving the sound of the floor when warming and walking.

In addition, it can be assembled and assembled so that dust and noise can be reduced even when the product is installed, and it can be assembled and installed conveniently and quickly. In addition, it is possible to reduce the load burden of the structure by reducing weight so that a stable and stable assembled state can be maintained Which is easy to install and remove, which is low in installation and removal cost, and can be easily repaired and partially remodeled.

In order to accomplish the above object, the present invention provides a method for producing a prefabricated floor panel of an eco-friendly material by pulverizing, cutting, compressing, and molding a waste material using a waste material in order to reduce waste of resources and serve as an environmentally friendly material do.

In order to solve the above problems,

a. Collection of waste pulp paper (SCRAP collection) step; b. A first grinding step in which the loaded paper towel is cut into a size of 10 to 50 mm; c. A second pulverization step in which water is mixed with the primary pulverized material subjected to the primary pulverization step and then the pulverized material is reduced to 3 to 5 mm in size on the agitator; d. Mixing 20 to 35% of a polypropylene type or polyethylene type resin with 15 to 30% of the second pulverized product, mixing 25% of calcium carbonate (CaCO ₃ ), 10% of rubber and 15% of glass fiber; e. A step of dehydrating and drying the second pulverized product after the second pulverization step while moving to the drainer conveyor; f. Dewatering and drying of the raw material is carried out by injection molding and pressing with a press to form a double bottom panel; g. Checking step; h. Shipping; And then assembled double-bottom panel made of eco-friendly material.

The details of other embodiments are included in the detailed description.

When the waste material according to the present invention is used as a floor interior material, waste of resources can be reduced, and it is possible to provide a light and low price product which is not an iron plate or a marble having a high unit price because it is an environmentally friendly product.

In addition, when the floor eco-friendly floor panel is used, there is an advantage that the management and interior of the electric wire can be made inexpensive and luxurious on the floor of the commercial floor where the interior and interior of the office are frequently changed. By installing the above-mentioned bottom panel on the floor, it can be mounted on the floor at low cost with an environmentally-friendly product, and partial repair can be performed at low cost, and the construction time is short, so that there is an advantage that noise and dust during installation are less.

The panel according to the present invention is not only used as an inexpensive flooring material but also allows a space to be utilized more efficiently as needed by placing a vending machine or the like on a panel without directly placing the vending machine on the floor.

1 is a process flow chart of a manufacturing method.
Fig. 2 is a schematic view of the upper surface of the assembled double bottom panel
FIG. 3 is a bottom view of the assembled double bottom panel.
4 is an overall schematic view of the assembled double bottom panel
5 is a schematic side view of the assembled double bottom panel
6 is a bottom view schematically showing the assembled double bottom panel connected with a fixing part and a fitting groove.
Figure 7 is a graphical representation of the test results of the assembled double-

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the thicknesses of layers and regions are exaggerated for clarity.

Terms such as top, bottom, top, bottom, or top, bottom, etc. are used to distinguish relative positions in components. For example, in the case of naming the upper part of the drawing as upper part and the lower part as lower part in the drawings for convenience, the upper part may be named lower part and the lower part may be named upper part without departing from the scope of right of the present invention .

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. It is to be understood that the terms such as " comprises "or" having "in this application are intended to specify the presence of stated features, integers, steps, operations, elements, parts, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, component parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be construed as ideal or overly formal in meaning unless explicitly defined in the present application Do not.

Hereinafter, preferred embodiments of a double bottom panel according to the present invention will be described in detail with reference to the accompanying drawings.

Diapers, sanitary products, paper towels, etc., which are essential items in modern society, are increasing in consumption due to their convenience. As described above, a large amount of consumption leads to a large amount of production, and this phenomenon is a constant rate of generation of defective products during the production process, and thus the waste is increasing. Paper products such as diapers and paper towels that are produced during the production process at a factory are usually mixed with polyolefin-based polymer fibers and wood pulp or constitute separate layers. In particular, when a resin for enhancing wet strength is added, Therefore, all of these wastes are incinerated.

The present invention relates to a method of manufacturing a double bottom panel using waste pulp paper, wherein a floor or a deco tile is applied to a general concrete floor at the time of construction of an interior of various buildings, wherein each floor has various strengths and moods It is a choice for production. This flooring is made of eco-friendly materials and is one of the convenient and easy to install methods. Access floor is provided, and the double flooring can be made as a double bottom panel type by using pulp paper to utilize eco-friendly resources. .

As described above, the double-bottom panel generally uses materials for building materials that are rigid enough to withstand loads such as concrete, PVC panels, aluminum, and steel. These materials usually consume a large amount of resources and can not be recycled And it is difficult to process and cut in the field. In addition, since the weight is heavy, the efficiency of the work is degraded and the self weight of the building is increased, so that cracks of the panel often occur.

To overcome the above disadvantages, the present invention has developed an appropriate processing method using waste pulp paper, which has the advantage that sufficient strength and cracking do not occur and processing is easy in the field. In addition, since it is easy to dispose of remodeling after partial repair and remodeling according to low cost construction, which is advantageous of double flooring, it is possible to recycle waste. Therefore, the purpose of product development by recycling waste pulp paper It is the nearest article.

The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description when read in conjunction with the accompanying drawings.

<Examples>

a. Collection of waste pulp paper (SCRAP collection) step;

The collected materials are inspected and separated according to the type of waste, and the wastes are reworked by separating the wastes by setting the content of water within 1% and the water content within 6%.

In the case of a diaper, which is one of the pulp pulp paper, 47% of PE (polyethylene resin), 50% of pulp and 3% of SAP (superabsorbent resin) are constituted. As described above, the pulp papers to be used for the reproduction are added with the wet strength increasing resin such as PE or polypropylene type resin polyolefin type polymer resin, so that even when wetted with water, the strength is maintained and reusable. Paper that has not been treated with wet strength usually maintains only 3 to 5% of the strength before wetting the water when wetted with water, but it can maintain 15% or more of the strength before wetting the wetted paper even if wet.

b. A first grinding step in which the loaded paper towel is cut into a size of 10 to 50 mm;

In the primary pulverization process, the pulverized raw material is firstly pulverized in a single blade-type pulverizer or a mouse tooth pulverizer. The secondary pulverization becomes usable after the pulverizing process described above. This is because the use of a grinder having a single blade or a rat tooth grinder is advantageous in terms of cutting polyolefin fibers, and it is also possible to use another grinder.

c. A second pulverization step in which water is mixed with the primary pulverized material subjected to the primary pulverization step and then the pulverized material is reduced to 3 to 5 mm in size on the agitator;

d. The second pulverized product is melted at 20 to 35% of a polyethylene or polypropylene-based material in 15 to 30% by weight of 100 parts by weight of the whole, 25% of calcium carbonate (CaCO ₃ ), 10% of rubber, fiber) 15%;

Heat is applied to the secondary pulverized material through an input / output unit, and an additive for securing the necessary strength and properties to the double bottom panel is added. The above pulverized product is melted by putting it into an inlet and an outlet and melting, and at this time, 20 to 35% of a polyethylene or polypropylene material is melted and 25% of calcium carbonate (CaCO ₃ ), 10% of rubber, 15%, mixed by rotation, and the impurities are separated and removed.

In the second pulverization step, the raw material is disintegrated and pulverized to a small size in the state of mixing the water and the pulp raw material.

The added rubber does not have much use in raw condition, but vulcanized in combination with various compounding agents or in combination with metal or textile products is very useful as a rubber product. The double bottom panel is used as a reinforcing agent by adding calcium carbonate together with rubber. Such a combination has a large tensile strength and elongation, and a modulus is relatively small. Calcium carbonate (CaCO ₃ ) is industrially produced by pulverizing limestone to form a powder, sieving it, and separating the particles according to their size or specific gravity using the difference in velocity when the solid particles free precipitate in the air . Calcium carbonate is widely used in industrial fields because it is cheap and has a low specific gravity. Namely, it is used as various kinds of neutralizing agents such as limestone, marble, raw materials for cement, raw materials for calcium oxide, iron and building materials. It is also blended as a reinforcing agent in rubber.

The glass fiber added was a substitute for natural asbestos during the First World War and the first industrialization was the production of staple fibers for high temperature insulation in Germany. The short fibers prepared as described above are easy to manufacture, and the high and long fibers used as the heat insulation material are widely used as a fiberglass reinforced plastics (FRP) and an insulating material. In addition, glass has acid resistance and alkali-resistant fibers such as barrier ribs of batteries have recently been put to practical use and have been used for reinforcing cement. As described above, the addition of the glass fiber can increase the incombustibility and strength of the double bottom panel.

e. A step of dehydrating and drying the second pulverized product after the second pulverization step while moving to the drainer conveyor;

The coarsely pulverized material in the secondary is dehydrated and dried and transformed into a raw material state for re-molding.

f. Dewatering and drying of the raw material is carried out by injection molding and pressing with a press to form a double bottom panel;

In order to process the bottom as described above, the thickness is adjusted by the difference in the moving speed, and the shape is cut by pressing the raw paper and pressing by 150 kgf / cm ² .

g. Checking step;

After cutting the shape by the above molding, the product is checked and packed to check whether there is any defective product in the strength and model frame.

h. Shipping;

The double bottom panel, which has been reworked through the above-described manufacturing process, is manufactured in such a form as to increase the efficiency of field construction.

The shape of the double bottom panel is a plate having a width of 250 x 250 mm (FIG. 2) and a height of 50 mm (FIG. 5) You can use the bottom panel as an option.

Each panel can be connected by a fitting groove and can be easily laid on the floor. In addition, even if there is irregularity on the floor, it is possible to flexibly cope with the problem of unevenness between the panel and the indoor unit which is inevitably encountered, and the protrusion of the column due to the wall error due to the construction error in the field construction.

In addition, the legs of the respective panels are fixed by being fastened once again by the fixing parts (Fig. 6) (Fig. 6). The fixing parts 6 as described above are each made to have the same thickness as the legs of the panel so as not to be shaken and cut according to the situation in the field, so that the fixing parts 6 can be advantageously used in the field. Fixed fittings can be inserted anywhere in the nine legs of the double bottom panel, so they can be cut in the field and used to cut and connect anywhere.

In addition, the thickness of the upper surface plate is made 5 mm, and the back surface is made to have a predetermined shape such as a net shape and a lattice pattern to overcome the load by 15 mm or more to withstand the load (FIGS. 3 and 5 ). As shown in FIG. 5, the above-mentioned overhang may be overlaid on the bottom surface and may be folded in the shape of a bird's eye as shown in FIG. When securing a floor more than 30mm apart, it is possible to use the double floor so that the wires and cables under the floor can pass.

 In addition, since the flooring material is a light material, the difference in weight during the process of transporting, organizing, and constructing the product for a long period of time allows a reduction in the fatigue of the functional worker and enables continuous work, thereby increasing work efficiency . The above shape can be confirmed by way of example through the drawings.

The compression strength of the double bottom panel fabricated by the above process was requested and experimented.

As a result, the ultimate compressive strength of the sample was measured using a universal material testing machine, and a maximum pressing strength was confirmed by setting a pressing speed of 2 mm / min. The maximum compressive load was determined as the point where the sample did not break and the strength was no longer increased. The test result showed a strength of 42694 N / mm ² (4356979.59 Kgf / cm ² ). It can be confirmed that it is the strength enough to cope with existing steel products.

The double bottom panel formed by the above process was found to be free of Pb (lead), Cd (cadmium), Hg (mercury), and Cr6 + (chromium), which are four major heavy metals as environmentally friendly products when using a waste diaper (Fig. 5) in the test report. This is because it is made of safer material because it is a hygienic product used for skin or sanitary article that touches the food used in the kitchen, and for this reason it is environmentally friendly as well as being environmentally friendly, which is useful for indoor use as building material. In addition, as described above, when pulp is used in an amount of 15% or more, it is advantageous to use as an indoor building material because of non-drip fire delay advantage.

As described above, the double bottom panel is made of waste materials, but it is possible to check the compressive strength without damaging the building interior. It is possible to clean the office environment neatly by wiring the system as a double bottom panel, It is a material with high strength such as steel plate or steel and it is competitive in price. In addition, by installing the cable line inside the floor, it is possible to see a better interior effect, and it is installed to float on the concrete floor, and has the effect of relieving the interlayer noise and alleviating the sound of flooring at the time of warming and walking.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions in the embodiments of the present invention, which may vary depending on the intention of the user, the intention or the custom of the operator. Therefore, the definition should be based on the contents throughout this specification.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limited to the embodiments set forth herein. It can be understood that It is therefore to be understood that one embodiment described above is illustrative in all aspects and not restrictive.

Claims (3)

a. Collection of waste pulp paper (SCRAP collection) step;
b. A first grinding step in which the loaded paper towel is cut into a size of 10 to 50 mm;
c. A second pulverization step in which water is mixed with the primary pulverized material subjected to the primary pulverization step and then the pulverized material is reduced to 3 to 5 mm in size on the agitator;
d. Melting and mixing a polyethylene or polypropylene-based material with calcium carbonate (CaCO ₃ ), rubber, and glass fiber in a secondary pulverized product;
e. A step of dehydrating and drying the second pulverized product after the second pulverization step while moving to the drainer conveyor;
f. Dewatering and drying of the raw material is carried out by injection molding and pressing with a press to form a double bottom panel;
g. Inspecting and packaging;
h. Shipping;
Wherein the method comprises the steps of:
The method of claim 1, wherein
In the melting step, the secondary pulverized product is melted in an amount of 15 to 30% by weight based on 100 weight parts by weight and 20 to 35% by weight of polyethylene or polypropylene based materials, and 25% by weight of calcium carbonate (CaCO ₃ ) 10%, and glass fiber (15% by weight).
The method according to claim 1,
The shape of the double bottom panel is 250 x 250 mm in width and length,
The thickness of the upper panel of the double bottom panel is 5 mm,
In order to withstand the load, the back panel of the upper panel is provided with a vertical shape such as a net shape and a lattice pattern so as to be able to withstand a load of 15 mm or more,
The legs supporting the upper panel are formed and the height of the entire panel is 50 mm,
The legs form nine legs to give a sense of stability,
Each double bottom panel is connected to the shape of the fitting groove and the shape of the fixing part,
Wherein the method comprises the steps of:

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